* Join similar imports
Avoid the confusion that might cause one to think that they come from
different modules or crates.
* Create an `Arguments` helper type
A type to keep track of a list of arguments for a sub-process. It makes
it easier for overriding parameters with new values.
* Create an `args!` helper macro
Make it simpler to create `Arguments` instances with known values.
* Require `Arguments` for `spawn_child` method
Change the method to have an `Arguments` parameter, and merge it with
some default values before passing them forward.
* Use `Arguments` in `spawn_lightwalletd_child`
Change the method to use an `Arguments` instance, and merge it with some
default options.
* Use `Arguments` in `spawn_child_with_command`
Require an `Arguments` instance in the `spawn_child_with_command`
extension method. Makes it simpler to call from `spawn_child` and
`spawn_lightwalletd_child` extension methods.
* Test if argument order is preserved
Check that when building an `Arguments` instance, the order that the
arguments are set is preserved in the generated list of strings.
* Refactor test to improve readability
Also separates some common code to be reused by later tests.
* Test overriding arguments
Check to see if overriding arguments behaves as expected, by keeping the
argument order when overriding and not introducing duplicates.
* Refactor test to improve readability
Move out a chunk of code so that the test itself is easier to read and
to make that code reusable by a later test.
* Test that `Arguments` instances can be merged
Merge two `Arguments` instances built from two lists of arguments, and
check that the expanded strings preserve order and override rules.
* Add Eq derives on Arguments
Co-authored-by: teor <teor@riseup.net>
* Update changelog for 1.0.0-beta.8
* Bump Zebra crate versions
The tower crates and their dependencies haven't changed,
so their versions don't need to be bumped.
Some Zebra crates haven't changed,
but I bumped all the versions to keep them consistent.
* Explicitly say that we support NU5 testnet 2
* Expand PR #3799 into changelog entries
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Add a rpc queue
* Implement the rpc queue
* Add rpc queue tests
* Remove mutex, use broadcast channel
* Have order and limit in the queue
* fix multiple transactions channel
* Use a network argument
* Use chain tip to calculate block spacing
* Add extra time
* Finalize the state check test
* Add a retry test
* Fix description
* fix some docs
* add additional empty check to `Runner::run`
* remove non used method
* ignore some errors
* fix some docs
* add a panic checker to the queue
* add missing file changes for panic checker
* skip checks and retries if height has not changed
* change constants
* reduce the number of queue test cases
* remove suggestion
* change best tip check
* fix(rpc): Check for panics in the transaction queue (#4046)
* Check for panics in the RPC transaction queue
* Add missing pin! and abort in the start task
* Check for transaction queue panics in tests
* Fixup a new RPC test from the main branch
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Update changelog for v1.0.0-beta.7
* Increment all crate versions
* Remove redundant release test that is now covered by CI
* Remove completed NU5 README check task from the release template
* Add Merge Freeze tool to the release checklist
* Simplify release checklist by removing unused steps
* Return error code -8 for missing blocks, like zcashd does
* Test that getblock returns error code -8 for missing blocks
* Make RegexSet failures easier to read in logs
* Update lightwalletd acceptance tests for log message changes
* Add extra failure strings for lightwalletd logs
* Improve link formatting
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
* Make proptest-impl features consistently depend on each other
* Use a non-test method for consensus checks
* Make proptest dependencies the same between crates
* Repoint zebra image links to our new zfnd.org site for now
* Remove images/
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
- use info level, there is nothing the user needs to do,
particularly for a single error
- explain that the errors are temporary
- hide backtraces, because they look like crashes
* Implement `getblockchaininfo` RPC method
* add a test for `get_blockchain_info`
* fix tohex/fromhex
* move comment
* Update lightwalletd acceptance test for getblockchaininfo RPC (#3914)
* change(rpc): Return getblockchaininfo network upgrades in height order (#3915)
* Update lightwalletd acceptance test for getblockchaininfo RPC
* Update some doc comments for network upgrades
* List network upgrades in order in the getblockchaininfo RPC
Also:
- Use a constant for the "missing consensus branch ID" RPC value
- Simplify fetching consensus branch IDs
- Make RPC type derives consistent
- Update RPC type documentation
* Make RPC type derives consistent
* Fix a confusing test comment
* get hashand height at the same time
* fix estimated_height
* fix lint
* add extra check
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* fix typo
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* split test
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* fix(rpc): ignore an expected error in the RPC acceptance tests (#3961)
* Add ignored regexes to test command failure regex methods
* Ignore empty chain error in getblockchaininfo
We expect this error when zebrad starts up with an empty state.
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Make command test matching code accept generic regexes
And add generic conversions to regexes.
* Document test command structs
* Support matching multiple regexes internally in the test command
* Make it easier to call the generic regex methods
* Add a missing API usage comment
* Fix a potential hang in test child error reports
* Revert Option<Child> process handling
* Revert "Revert Option<Child> process handling"
This reverts commit 2af30086858d104dcb0ec87383996c36bcaa7371.
* Add a set of failure regexes to test command output
* Allow debug-printing TestChild again
* When the child is dropped, check any remaining output
* Document a wait_with_output edge case
* Improve failure regex panic output
* Improve builder ergonomics
* Add internal tests for failure regex panics
It would be easy to disable these panics, and never realise.
* Add some module structure TODOs
* Stop panicking if the child process has already been taken
* Add test APIs for consuming child output lines
* Fix a hang on child process drop
* Handle output being already taken in wait_with_output
And document some edge cases we don't handle yet
* Use bash's read command in the TestChild stderr test
And check the actual command we're using to see if it errors.
* Pretty print full failure regex list
* Add the test child command line to the failure regex logs
* Simplify the sync_until test code
* Check logs for failure messages in lightwalletd integration tests
* Add more TODOs and improve comments
* Allow missing branch ID 00000000 provided by zcashd
* Revert "Revert Option<Child> process handling"
This reverts commit 2af30086858d104dcb0ec87383996c36bcaa7371.
* Add a set of failure regexes to test command output
* Allow debug-printing TestChild again
* When the child is dropped, check any remaining output
* Document a wait_with_output edge case
* Improve failure regex panic output
* Improve builder ergonomics
* Add internal tests for failure regex panics
It would be easy to disable these panics, and never realise.
* Add some module structure TODOs
* Stop panicking if the child process has already been taken
* Add test APIs for consuming child output lines
* Fix a hang on child process drop
* Handle output being already taken in wait_with_output
And document some edge cases we don't handle yet
* Use bash's read command in the TestChild stderr test
And check the actual command we're using to see if it errors.
* Pretty print full failure regex list
* Add the test child command line to the failure regex logs
* Refactor to split `ChainSync::sync` method in two
Replace the use of loop labels and `continue` for control flow, and use
early return from a separate method instead. This also allows removing
the `started_once` flag.
* Refactor to create `handle_block_response` helper
Reduce duplicate code and make the main synchronization methods a little
more concise to improve readability.
* Only cancel downloads in case of error
Leave active downloads running if the tips have been exhausted, because
it could have reached the chain tip.
* Add the ChainTip and Network to RpcImpl
* Add the new RpcImpl fields to the tests
* Simplify RPC version field using generics
* Temporarily allow unused struct fields
* Use the read-only state service for RPCs
* Refactor non-finalized block lookup into Chain
* Implement the read-only state block request
* Drop the Chain watch channel lock before accessing the finalized state
* feat(rpc): implement `getrawmempool` rpc method
* tests(rpc): start implementing a test
* Return a `Vec<String>` from `get_raw_mempool`
Ensure the returned type is serialized as an array of hexadecimal
strings.
* Make `getrawmempool` test a property test
Test it with random sets of transaction IDs.
* Fix code formatting inside `proptest!`
Run `rustfmt` inside the `proptest!` block.
* tests(rpc): fix lightwalletd test
* fix(rpc): remove non used return type
* tests(rpc): remove assert
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* Allow extra time for lightwalletd integration tests
* Wait for a successful block ingestion in lightwalletd integration
* Check for any ingestor block, not just block 1
* Add state service module docs and cleanup
* Move and add finalized state methods
* Add chain and non-finalized state methods
* Cleanup methods and imports
* Create a ReadStateService type
* Add a stub service implementation
* Add a TODO
* Update ReadStateService request stubs with RPC names and tickets
* Documentation updates
* Make RPC State generic bounds accept a buffered state and a read-only state
* Doc updates
* Add missing proptest-impl feature in RPC dev dependencies
* feature(rpc): start adding a `getblock` method
* fix(rpc): replace oneshot
* fix(rpc): replace a panic with error
* fix(rpc): fix test
* feature(rpc): add hex to response
* refactor(rpc): use generic instead of alias
* docs(rpc): improve docs for getblock method
* test(rpc): add a test for getblock method
* deps(rpc): remove non needed tower features
Co-authored-by: teor <teor@riseup.net>
* docs(rpc): add a note to getblock doc
* refactor(rpc): replace alias
* fix(rpc): use `zcash_serialize_to_vec()` instead of logging format
* tests(rpc): add network argument to `populated_state()`
* refactor(rpc): use an error for state service readiness
* fix(rpc): add parameter
* fix(rpc): clippy
* nit(rpc): remove new line from imports
* fix(rpc): remove commented code
* fix(rpc): simplify error
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* Use a `SerializedBlock` type to help serializing blocks (#3725)
* Create a `SerializedBlock` helper type
Create a type that can be used as a byte slice, but is guaranteed to
represent a valid block.
* Use `into_iter` instead of `iter`
There's no need to borrow the elements, they can be moved out directly.
This will be necessary because `&Arc<T>` doesn't implement `Borrow<T>`,
so a `SerializedBlock` can't be built directly from an `&Arc<Block>`.
* Use `SerializedBlock` in `GetBlock`
Make the type stricter to avoid storing possibly invalid values. The
bytes are still serialized as a hexadecimal string, through the usage of
`hex`.
The `serde::Deserialize` can't be derived because `hex` requires the
type to also implement `FromHex`.
* feature(rpc): add suggestions from code review
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* tests(rpc): make sure mempool has no requests in get_block test
* fix(rpc): change height argument type in getblock method
* fix(rpc): rustfmt
* fix(rpc): replace panic
* fix(rpc): change getblock response
* fix(rpc): fix lightwalletd test
* tests(rpc): add a getblock error test
* fix(rpc): try another regex
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* Stub `sendrawtransaction` RPC method
Register the RPC method, and stub an implementation that currently just
panics. The method has a single `String` parameter with the hexadecimal
string of the raw transaction's bytes and returns a
`SentTransactionHash` wrapper type that's just a hexadecimal `String` of
the sent transaction's hash.
* Add mempool service instance to `RpcImpl`
Use a type parameter to represent the mempool service using the
interface defined by `zebra-node-services`.
* Update test vector to use a mock mempool service
Update the test to be compatible with the changes to `RpcImpl`. The mock
mempool service is expected to not be used during the test.
* Use a `tower::Buffer` for the mempool service
Make it simpler to send requests to the service in a concurrent manner.
* Return a `Future` from `send_raw_transaction`
Make the call asynchronous.
* Implement `sendrawtransaction` RPC
Deserialize the transaction and send it to be queued for verification
and subsequent inclusion in the mempool.
* Test if mempool receives sent raw transaction
Use a mock service as the mempool service and check that it receives a
sent raw transaction.
* Test using non-hexadecimal string parameter
The method should return an error.
* Test with bytes that fail deserialization
Check that the method returns an invalid parameters error if the input
can't be deserialized as a `Transaction`.
* Test if mempool errors are forwarded to caller
Mempool service errors should be sent back to the remote caller as
server errors.
* Test transactions rejected by the mempool service
Transactions that are rejected by the mempool service should result in
a server error being sent to the caller.
* Improve error message
Add the word "structurally" to make it clear that the issue is in the
transaction's deserialization.
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
* Add note regarding missing `allowhighfees` param.
The parameter isn't supported yet because `lightwalletd` doesn't use it.
* Update the documentation to be consistent
Follow the convention adopted by the `get_info` RPC method.
* Implement `ToHex` and `FromHex` for `Hash`
Make it easier to generate hexadecimal strings from `transaction::Hash`
instances.
* Use `ToHex` in `Debug` and `Display`
Reduce repeated code.
* Refactor to add `bytes_in_display_order` method
Use it to remove repeated code and improve clarity a bit.
* Use `hex::serialize` to serialize transaction hash
Make the type stricter in its contents, while still serializing the
transaction has as a hexadecimal string.
* Simplify serialization attribute
Deserialization should also use `hex::deserialize`, so using the shorter
attribute makes things easier to read and more future proof.
* Update zebra-chain/src/transaction/hash.rs
* Remove unnecessary lifetime
The anonymous lifetime is automatically inferred by the compiler.
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
Sometimes lightwalletd goes straight to "Another refresh in progress",
without logging "Mempool refresh error" first.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* Upgrade some dependencies
* Upgrade some dependencies
* Upgrade dependencies for zebrad
* Upgrade tracing dependencies
* Revert `tor` & `arti`
* Upgrade `criterion` & `pin-project` in `deny.toml`
* Remove some dependencies from `skip-tree` in `deny.toml`
* Revert some the versions of dependencies because of duplicates
* Revert proptest regressions
* Upgrade dependencies, then ignore some more duplicates (#3716)
* feat(actions)!: add full sync test (#3582)
* add(tests): full sync test
* fix(test): add build
* fix(deploy): escape double dashes '--' correctly
* fix(test): remove unexpected --no-capture arg
error: Found argument '--nocapture' which wasn't expected, or isn't valid in this context
* refactor(docker): use default executable as entrypoint
* refactor(startup): add a custom entrypoint
* fix(test): add missing TEST_FULL_SYNC variable
* test(timeout): use the biggest machine
* fix
* fix(deploy): use latest successful image
* typo
* refactor(docker): generate config file at startup
* revert(build): changes were made to docker
* fix(docker): send variables correctly to the entrypoint
* test different conf file approach
* fix(env): add RUN_TEST env variable
* ref: use previous approach
* fix(color): use environment variable
* fix(resources): use our normal machine size
* fix(ci): double CPU and RAM for full sync test
* fix(test): check for zebrad test output in the correct order
The mempool is only activated once, so we must check for that log first.
After mempool activation, the stop regex is logged at least once.
(It might be logged before as well, but we can't rely on that.)
When checking that the mempool didn't activate,
wait for the `zebrad` command to exit,
then check the entire log.
* fix(ci): run full sync test with full compiler optimisations
* fix(tests): reintroduce tests and run full sync on approval
* fix(tests): reduce the changelog
Co-authored-by: teor <teor@riseup.net>
* fix(ci): update CI job path triggers (#3692)
* ci(test): re-run tests when snapshot data changes
* fix(ci): rebuild state when disk format changes
* fix(ci): rebuild rust docs when code or dependencies change
* doc(ci): explain why we run jobs when files change
Co-authored-by: Gustavo Valverde <gustavo@iterativo.do>
* fix(build): use the right multistage target (#3700)
* fix(review): only assign one reviewer to general Rust reviews (#3708)
If we assign two teams, GitHub assigns two reviewers.
* fix(ci): change the color-eyre ignore to a tracing-subscriber ignore
* fix(ci): ignore duplicate darling dependencies
* doc(ci): remove an alternative resolution doc
Co-authored-by: Gustavo Valverde <gustavo@iterativo.do>
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Gustavo Valverde <gustavo@iterativo.do>
* Stub `sendrawtransaction` RPC method
Register the RPC method, and stub an implementation that currently just
panics. The method has a single `String` parameter with the hexadecimal
string of the raw transaction's bytes and returns a
`SentTransactionHash` wrapper type that's just a hexadecimal `String` of
the sent transaction's hash.
* Add mempool service instance to `RpcImpl`
Use a type parameter to represent the mempool service using the
interface defined by `zebra-node-services`.
* Update test vector to use a mock mempool service
Update the test to be compatible with the changes to `RpcImpl`. The mock
mempool service is expected to not be used during the test.
* Use a `tower::Buffer` for the mempool service
Make it simpler to send requests to the service in a concurrent manner.
* Return a `Future` from `send_raw_transaction`
Make the call asynchronous.
* Implement `sendrawtransaction` RPC
Deserialize the transaction and send it to be queued for verification
and subsequent inclusion in the mempool.
* Test if mempool receives sent raw transaction
Use a mock service as the mempool service and check that it receives a
sent raw transaction.
* Test using non-hexadecimal string parameter
The method should return an error.
* Test with bytes that fail deserialization
Check that the method returns an invalid parameters error if the input
can't be deserialized as a `Transaction`.
* Test if mempool errors are forwarded to caller
Mempool service errors should be sent back to the remote caller as
server errors.
* Test transactions rejected by the mempool service
Transactions that are rejected by the mempool service should result in
a server error being sent to the caller.
* Improve error message
Add the word "structurally" to make it clear that the issue is in the
transaction's deserialization.
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
* Add note regarding missing `allowhighfees` param.
The parameter isn't supported yet because `lightwalletd` doesn't use it.
* Update the documentation to be consistent
Follow the convention adopted by the `get_info` RPC method.
* Remove mempool service usage line
It contained incomplete information that's not really necessary.
Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
* Fix formatting
`rustfmt` was not executed on the file for the previous commit because I
had edited it on GitHub.
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
* fix(ci): remove an unused trigger path
* doc(ci): explain lightwalletd trigger paths
* fix(test): check for adityapk00/lightwalletd behaviour in test harness
* fix(ci): work around buildx command error
* fix(ci): revert the workaround
* tests(rpc): add an rpc endpoint test
* tests(rpc): add an rpc port conflict test
* tests(rpc): refactor some imports
* tests(rpc): fix failures, make test more complete
* tests(rpc): parse json response for better coverage
* tests(rpc): change request
* tests(rpc): wait until port is open in rpc_endpoint test
* tests(rpc): add a delay between launching 2 nodes
* tests(rpc): try 5 seconds
* refactor(rpc): open rpc server faster
* tests(rpc): extend `LAUNCH_DELAY` to 15 seconds
* fix(rpc): disable rpc_conflict test for windows
* fix(ci): skip the RPC tests if the network is disabled
* rustfmt
* fix(zebrad/test): test function return type
* tests(rpc): print server output in assert
* fix(rpc): fix acceptance test looking for string in `build` field
* fix(rpc): reduce the number of acceptable characters in version output
Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* fix(test): only run lightwalletd test when the ZEBRA_TEST_LIGHTWALLETD env var is set
* fix(test): actually skip the test
* doc(zebrad): add some test TODOs
* doc(test): document zebrad-specific process launch methods
* refactor(zebrad): split lightwalletd launch into its own testing methods
* fix(zebrad/test): simplify file writing
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* refactor(zebrad/test): rename argument variables
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
* lint(zebrad/tests): remove unused import
* fix(zebrad/test): restore SocketAddr import that was removed on main
* rustfmt
* fix(zebrad/test): update integration test to match adityapk00/lightwalletd behaviour
* rustfmt
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
* feature(rpc): add getinfo subversion field and getinfo docs
* feature(rpc): add getinfo build field
* refactor(rpc): replace the lazy_static
* docs(rpc): fic typo, add link to zcashd ticket
* tests(rpc): add getinfo unit test
* docs(rpc): complete comment
The mempool is only activated once, so we must check for that log first.
After mempool activation, the stop regex is logged at least once.
(It might be logged before as well, but we can't rely on that.)
When checking that the mempool didn't activate,
wait for the `zebrad` command to exit,
then check the entire log.
* Create new empty `zebra-node-services` crate
The goal is to store the mempool `Request` and `Response` types so that
the `zebra-rpc` crate can interface with the mempool service without
having to import `zebrad`.
* Move `Gossip` mempool type into new crate
It is required by the `Request` type, which will be moved next.
* Add documentation to `Gossip` variants
Avoid having to add an exception to allow undocumented code.
* Move `mempool::Request` type to new crate
The first part of the service interface definition. Usages have been
changed to refer to the new crate directly, and since this refactor is
still incomplete, some `mp` aliases are used in a few places to refer to
the old module.
* Create an `UnboxMempoolError` helper trait
Centralize some common code to extract and downcast boxed mempool
errors. The `mempool::Response` will need to contain a `BoxError`
instead of a `MempoolError` when it is moved to the
`zebra-node-services` crate, so this prepares the tests to be updated
with less changes.
* Use `UnboxMempoolError` in tests
Make the necessary changes so that the tests are ready to support a
`BoxError` in the `mempool::Response` type.
* Use `BoxError` in `mempool::Response`
Prepare it to be moved to the `zebra-node-services` crate.
* Move `mempool::Response` to `zebra-node-services`
Update usages to import from the new crate directly.
* Remove `mp` aliases for mempool component module
Use any internal types directly instead.
* Replace `tower::BoxService` with custom alias
Remove the dependency of `zebra-node-services` on `tower`.
* Move `Gossip` into a separate `sub-module`
Keep only the main `Request` and `Response` types in the `mempool`
module.
* Use `crate::BoxError` instead of `tower::BoxError`
Follow the existing convention.
* Add missing `gossip.rs` module file
It was missing from a previous refactor commit.
* feature(rpc): add an rpc component
* feat(rpc): add a stub for getblockchaininfo
This is the first RPC used by lightwalletd, so we need it for testing.
* fix(rpc): remove non-standard "jsonrpc: 1.0" from lightwalletd
* fix(rpc): re-enable default RPC security checks
* deps(rpc): remove not needed dependency
* fix(rpc): check if RPC task has stopped
* fix(rpc): reduce config by using Option
* fix(rpc): use tokio executor
* security(rpc): turn off rpc by default
* docs(rpc): update a TODO comment
Co-authored-by: teor <teor@riseup.net>
* fix(rpc): blocking tasks
Co-authored-by: teor <teor@riseup.net>
* rename(rpc): rpc.rs to methods.rs
* refactor(rpc): move the server to the zebra-rpc crate
* fix(rpc): clippy derive Default for RPC Config
* fix(dependencies): remove unused dependency features in zebra-rpc
We expect to use all the listed tokio features
to implement and test RPC methods.
* doc(rpc): fix testnet port, add security note
* fix(rpc): change Rust function names and update method doc TODOs
* fix(rpc): add "TODO" to fake RPC responses
* doc(rpc): update module docs
* fix(rpc): simplify server struct derives
* fix(rpc): simplify server code
* doc(rpc): explain how request fixes securely handle user-supplied data
* refactor(rpc): move the compatibility fix to a separate module
* fix(rpc): move the open log inside the spawn, and instrument it
* doc(rpc): fix toml format and provide a config example
Co-authored-by: teor <teor@riseup.net>